Police called to a home found the girl dead of apparent self-strangulation Sunday in London, about 25 miles west of Columbus.

London police Chief David Wiseman says the girl hanged herself overnight in her bedroom. He says the girl had been bullied before, and police are investigating all angles of her death, including whether she had recently been harassed.

Her parents told reporters the girl wore thick glasses, had attention deficit hyperactivity disorder and was teased by other youngsters outside of school. Her mother told WBNS-TV the girl frequently came home crying.

The school district says it doesn't tolerate bullying. It tells The Madison-Press in London it is cooperating with investigators.